Electronics Forum | Wed Feb 20 09:29:19 EST 2008 | mun4o
ni, I had similar problem too.I bake PCB in SW mashine - about 8h ,T=90 C.Problem is in the base material of PCB - there are moisture in the material.After my complaint to PCB factory , they change material and the problem disappear.
Electronics Forum | Thu Feb 21 04:41:37 EST 2008 | mun4o
hi,Toni, we use only FR4.Some of PCB we order in China and Taiwan.With these PCBs we can't any problem.Other PCB we order here in Bulgaria.The problems with voids start last year - we have voids only in PCBs from Bulgarian factory.The process is sam
Industry News | 2003-06-10 08:16:44.0
The following text describes the application of NWA Quality Analyst to quality control in the assembly of electronic components.
Industry News | 2011-03-31 11:54:23.0
Over the past few years, pad cratering has become a vexing problem in lead-free assemblies, largely attributed to problems with the resin used to make a printed board. To help industry eliminate the defect and, at the same time, cut costs, IPC — Association Connecting Electronics Industries® has released IPC-9708, Test Methods for Characterization of PCB Pad Cratering.
Technical Library | 2017-11-08 23:22:04.0
Due to the ongoing trend towards miniaturization of power components, the need for increased thermal conductivity of solder joints in SMT processes gains more and more importance. Therefore, the role of void free solder joints in power electronics becomes more central. Voids developed during soldering reduce the actual thermal transfer and can cause thermal damage of the power components up to their failure. For this reason, the company has developed a new technique to minimize the formation of these voids during the soldering process.
Training Courses | | | PCB Assembly Courses
The PCB assembly courses provide knowledge of different processes and equipment used in TH and SMT assembly of printed circuit boards.
SMTnet Express, October 10, 2019, Subscribers: 32,263, Companies: 10,893, Users: 25,93 Fill the Void IV: Elimination of Inter-Via Voiding Credits: FCT ASSEMBLY, INC. Voids are a plague to our electronics and must be eliminated! Over the last few
SMTnet Express, October 3, 2018, Subscribers: 31,373, Companies: 11,056, Users: 25,258 Fill the Void II: An Investigation into Methods of Reducing Voiding Tony Lentz - FCT Assembly , Patty Chonis, JB Byers - A-Tek Systems Voids in solder joints
| https://www.eptac.com/faqs/soldertips/soldertip/soldertip-36-wave-soldering-insufficient-fill-and-voids-in-pth
. As the flux product hits the wave solder system, the liquid will volatize very quickly and can create voids and blow holes in the solder joints
| http://etasmt.com/te_news_bulletin/2021-08-31/23574.chtml
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